ADHD stands for “Attention Deficit Hyperactivity Disorder,” which is a neurodevelopmental condition detected in children and adults characterized by the inability to pay attention and hyperactivity. Although all human beings find it difficult to maintain the same level of attention at all times, people diagnosed with ADHD face it more frequently and more intensely, hampering their professional and personal lives in general. The symptoms usually start from early childhood even though the symptoms might not be recognized during this time. Types of ADHD ADHD is mostly diagnosed in men than in women. It can be divided into three categories according to the behaviors of the patients and the intensity of their symptoms. Let’s take a look at the types of ADHD that the patients are diagnosed with. Predominantly inattentive People diagnosed with this type of ADHD frequently are unable to focus on a single thing. So the primary symptom of their mental issue is the inability to pay attention which might include things like getting distracted easily, forgetting to do basic chores, having difficulty following instructions, etc. Read 10 Post-Pregnancy Skincare Tips: Get Your Glow Back Predominantly hyperactive This type comprises people who predominantly show symptoms of hyperactivity like fidgeting, talking a lot, unnecessary movements, etc. Combined People with the combined type of ADHD fall victim to a mix of both inattentive and hyperactive behavior. Read Food Poisoning: Symptoms, Causes & Treatment Causes of ADHD Although researchers are trying their best, research on the causes of ADHD has not revealed anything specific yet. Recent researches have suggested that factors like genetics, low birth weight, problems with the central nervous system, premature birth, intake of tobacco or alcohol during pregnancy, injury to the brain, exposure to unfavorable environments are some of the major causes that might be responsible for causing ADHD in children and in adults.